Add en_IND instances, test refactor, State refactor

[etspaceman]

Changes Introduced

• Adds en_IND instances
• Refactors tests to allow some locales to be skipped in some tests
• Refactors State to be StateLike, adds Province, State and UsState instances. No longer US specific.

Is not backwards compatible due to the StateLike changes.

Applicable linked issues

Makes progress towards #8

Checklist (check all that apply)

• This change maintains backwards compatibility
• I have introduced tests for all new features and changes
• I have added documentation covering all new features and changes
• This pull-request is ready for review

[codecov]

Codecov Report

Merging #31 into master will decrease coverage by 1.12%.
The diff coverage is 83.33%.

@@            Coverage Diff             @@
##           master      #31      +/-   ##
==========================================
- Coverage   98.63%   97.50%   -1.13%     
==========================================
  Files          86       87       +1     
  Lines         587      602      +15     
  Branches        2        1       -1     
==========================================
+ Hits          579      587       +8     
- Misses          8       15       +7     

Impacted Files	Coverage Δ
src/main/scala/faker/ResourceLoader.scala	59.09% <0.00%> (-30.91%)	⬇️
src/main/scala/faker/Faker.scala	97.86% <100.00%> (+0.01%)	⬆️
src/main/scala/faker/StringGenBuilder.scala	100.00% <100.00%> (ø)
src/main/scala/faker/SupportedLocales.scala	100.00% <100.00%> (ø)
src/main/scala/faker/address/StateLike.scala	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 7c35da9...6a76847. Read the comment docs.